I can't say that I have, Lola. I do know that all but two were martyred, tho. Judas hung himself, although my dad (a minister) once told me that isn't for certain. John (James' brother) was the only one who died a natural death. The others were killed by the hands of others - Peter, being hung upside on a cross. The famous picture depicting it is used in the YouTube E*N*D*G*A*M*E*S on another thread.
I think, until they each died, (with the exception of Judas) they helped establish the church (fishers of men), some preaching to the Gentiles, others preaching to the Jews. Could the theological struggle you speak of between Peter and Paul be because they were preaching to different sects - Peter to the Jews and Paul(Saul - a grafted Apostle) to the Gentiles.
Or, did you mean immediately after Jesus left them? If so, that would have made for a dramatic scene, I bet.

chatty, why did you stop going?